found 902652 0.8.13-3 severity 902652 important thanks Proof that aptitude is not ready for
/usr/share/doc/apt/NEWS.Debian.gz apt (2.1.16) unstable; urgency=medium Automatically remove unused kernels on apt {dist,full}-upgrade. To revert to previous behavior, set APT::Get::AutomaticRemove::Kernels to false or pass --no-auto-remove to the command. apt-get remains unchanged. # mv /etc/apt/apt.conf.d/10jidanni ~ #See, not anything caused by me # for i in apt apt-get aptitude; do set $i -s full-upgrade; echo =========== $@:; $@; done =========== apt -s full-upgrade: Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done The following packages will be REMOVED: linux-image-5.10.0-1-amd64 linux-image-5.10.0-2-amd64 linux-image-5.10.0-3-amd64 linux-image-5.10.0-4-amd64 linux-image-5.9.0-5-amd64 0 upgraded, 0 newly installed, 5 to remove and 0 not upgraded. Remv linux-image-5.10.0-1-amd64 [5.10.5-1] Remv linux-image-5.10.0-2-amd64 [5.10.9-1] Remv linux-image-5.10.0-3-amd64 [5.10.13-1] Remv linux-image-5.10.0-4-amd64 [5.10.19-1] Remv linux-image-5.9.0-5-amd64 [5.9.15-1] =========== apt-get -s full-upgrade: Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done The following packages were automatically installed and are no longer required: linux-image-5.10.0-1-amd64 linux-image-5.10.0-2-amd64 linux-image-5.10.0-3-amd64 linux-image-5.10.0-4-amd64 linux-image-5.9.0-5-amd64 Use 'apt autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. =========== aptitude -s full-upgrade: No packages will be installed, upgraded, or removed. 0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B of archives. After unpacking 0 B will be used. Would download/install/remove packages. See also https://bugs.launchpad.net/ubuntu/+source/aptitude/+bug/1772688